1 /* 2 * Copyright (C) 2012 Avionic Design GmbH 3 * Copyright (C) 2012-2013 NVIDIA CORPORATION. All rights reserved. 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License version 2 as 7 * published by the Free Software Foundation. 8 */ 9 10 #ifndef HOST1X_DRM_H 11 #define HOST1X_DRM_H 1 12 13 #include <uapi/drm/tegra_drm.h> 14 #include <linux/host1x.h> 15 #include <linux/iova.h> 16 #include <linux/of_gpio.h> 17 18 #include <drm/drmP.h> 19 #include <drm/drm_crtc_helper.h> 20 #include <drm/drm_edid.h> 21 #include <drm/drm_encoder.h> 22 #include <drm/drm_fb_helper.h> 23 #include <drm/drm_fixed.h> 24 25 #include "gem.h" 26 #include "trace.h" 27 28 struct reset_control; 29 30 struct tegra_fb { 31 struct drm_framebuffer base; 32 struct tegra_bo **planes; 33 unsigned int num_planes; 34 }; 35 36 #ifdef CONFIG_DRM_FBDEV_EMULATION 37 struct tegra_fbdev { 38 struct drm_fb_helper base; 39 struct tegra_fb *fb; 40 }; 41 #endif 42 43 struct tegra_drm { 44 struct drm_device *drm; 45 46 struct iommu_domain *domain; 47 struct mutex mm_lock; 48 struct drm_mm mm; 49 50 struct { 51 struct iova_domain domain; 52 unsigned long shift; 53 unsigned long limit; 54 } carveout; 55 56 struct mutex clients_lock; 57 struct list_head clients; 58 59 #ifdef CONFIG_DRM_FBDEV_EMULATION 60 struct tegra_fbdev *fbdev; 61 #endif 62 63 unsigned int pitch_align; 64 65 struct { 66 struct drm_atomic_state *state; 67 struct work_struct work; 68 struct mutex lock; 69 } commit; 70 71 struct drm_atomic_state *state; 72 }; 73 74 struct tegra_drm_client; 75 76 struct tegra_drm_context { 77 struct tegra_drm_client *client; 78 struct host1x_channel *channel; 79 unsigned int id; 80 }; 81 82 struct tegra_drm_client_ops { 83 int (*open_channel)(struct tegra_drm_client *client, 84 struct tegra_drm_context *context); 85 void (*close_channel)(struct tegra_drm_context *context); 86 int (*is_addr_reg)(struct device *dev, u32 class, u32 offset); 87 int (*is_valid_class)(u32 class); 88 int (*submit)(struct tegra_drm_context *context, 89 struct drm_tegra_submit *args, struct drm_device *drm, 90 struct drm_file *file); 91 }; 92 93 int tegra_drm_submit(struct tegra_drm_context *context, 94 struct drm_tegra_submit *args, struct drm_device *drm, 95 struct drm_file *file); 96 97 struct tegra_drm_client { 98 struct host1x_client base; 99 struct list_head list; 100 101 const struct tegra_drm_client_ops *ops; 102 }; 103 104 static inline struct tegra_drm_client * 105 host1x_to_drm_client(struct host1x_client *client) 106 { 107 return container_of(client, struct tegra_drm_client, base); 108 } 109 110 int tegra_drm_register_client(struct tegra_drm *tegra, 111 struct tegra_drm_client *client); 112 int tegra_drm_unregister_client(struct tegra_drm *tegra, 113 struct tegra_drm_client *client); 114 115 int tegra_drm_init(struct tegra_drm *tegra, struct drm_device *drm); 116 int tegra_drm_exit(struct tegra_drm *tegra); 117 118 void *tegra_drm_alloc(struct tegra_drm *tegra, size_t size, dma_addr_t *iova); 119 void tegra_drm_free(struct tegra_drm *tegra, size_t size, void *virt, 120 dma_addr_t iova); 121 122 struct tegra_dc_soc_info; 123 struct tegra_output; 124 125 struct tegra_dc_stats { 126 unsigned long frames; 127 unsigned long vblank; 128 unsigned long underflow; 129 unsigned long overflow; 130 }; 131 132 struct tegra_dc { 133 struct host1x_client client; 134 struct host1x_syncpt *syncpt; 135 struct device *dev; 136 spinlock_t lock; 137 138 struct drm_crtc base; 139 unsigned int powergate; 140 int pipe; 141 142 struct clk *clk; 143 struct reset_control *rst; 144 void __iomem *regs; 145 int irq; 146 147 struct tegra_output *rgb; 148 149 struct tegra_dc_stats stats; 150 struct list_head list; 151 152 struct drm_info_list *debugfs_files; 153 struct drm_minor *minor; 154 struct dentry *debugfs; 155 156 /* page-flip handling */ 157 struct drm_pending_vblank_event *event; 158 159 const struct tegra_dc_soc_info *soc; 160 161 struct iommu_domain *domain; 162 }; 163 164 static inline struct tegra_dc * 165 host1x_client_to_dc(struct host1x_client *client) 166 { 167 return container_of(client, struct tegra_dc, client); 168 } 169 170 static inline struct tegra_dc *to_tegra_dc(struct drm_crtc *crtc) 171 { 172 return crtc ? container_of(crtc, struct tegra_dc, base) : NULL; 173 } 174 175 static inline void tegra_dc_writel(struct tegra_dc *dc, u32 value, 176 unsigned int offset) 177 { 178 trace_dc_writel(dc->dev, offset, value); 179 writel(value, dc->regs + (offset << 2)); 180 } 181 182 static inline u32 tegra_dc_readl(struct tegra_dc *dc, unsigned int offset) 183 { 184 u32 value = readl(dc->regs + (offset << 2)); 185 186 trace_dc_readl(dc->dev, offset, value); 187 188 return value; 189 } 190 191 struct tegra_dc_window { 192 struct { 193 unsigned int x; 194 unsigned int y; 195 unsigned int w; 196 unsigned int h; 197 } src; 198 struct { 199 unsigned int x; 200 unsigned int y; 201 unsigned int w; 202 unsigned int h; 203 } dst; 204 unsigned int bits_per_pixel; 205 unsigned int stride[2]; 206 unsigned long base[3]; 207 bool bottom_up; 208 209 struct tegra_bo_tiling tiling; 210 u32 format; 211 u32 swap; 212 }; 213 214 /* from dc.c */ 215 void tegra_dc_commit(struct tegra_dc *dc); 216 int tegra_dc_state_setup_clock(struct tegra_dc *dc, 217 struct drm_crtc_state *crtc_state, 218 struct clk *clk, unsigned long pclk, 219 unsigned int div); 220 221 struct tegra_output { 222 struct device_node *of_node; 223 struct device *dev; 224 225 struct drm_panel *panel; 226 struct i2c_adapter *ddc; 227 const struct edid *edid; 228 unsigned int hpd_irq; 229 int hpd_gpio; 230 enum of_gpio_flags hpd_gpio_flags; 231 232 struct drm_encoder encoder; 233 struct drm_connector connector; 234 }; 235 236 static inline struct tegra_output *encoder_to_output(struct drm_encoder *e) 237 { 238 return container_of(e, struct tegra_output, encoder); 239 } 240 241 static inline struct tegra_output *connector_to_output(struct drm_connector *c) 242 { 243 return container_of(c, struct tegra_output, connector); 244 } 245 246 /* from rgb.c */ 247 int tegra_dc_rgb_probe(struct tegra_dc *dc); 248 int tegra_dc_rgb_remove(struct tegra_dc *dc); 249 int tegra_dc_rgb_init(struct drm_device *drm, struct tegra_dc *dc); 250 int tegra_dc_rgb_exit(struct tegra_dc *dc); 251 252 /* from output.c */ 253 int tegra_output_probe(struct tegra_output *output); 254 void tegra_output_remove(struct tegra_output *output); 255 int tegra_output_init(struct drm_device *drm, struct tegra_output *output); 256 void tegra_output_exit(struct tegra_output *output); 257 258 int tegra_output_connector_get_modes(struct drm_connector *connector); 259 enum drm_connector_status 260 tegra_output_connector_detect(struct drm_connector *connector, bool force); 261 void tegra_output_connector_destroy(struct drm_connector *connector); 262 263 void tegra_output_encoder_destroy(struct drm_encoder *encoder); 264 265 /* from dpaux.c */ 266 struct drm_dp_link; 267 268 struct drm_dp_aux *drm_dp_aux_find_by_of_node(struct device_node *np); 269 enum drm_connector_status drm_dp_aux_detect(struct drm_dp_aux *aux); 270 int drm_dp_aux_attach(struct drm_dp_aux *aux, struct tegra_output *output); 271 int drm_dp_aux_detach(struct drm_dp_aux *aux); 272 int drm_dp_aux_enable(struct drm_dp_aux *aux); 273 int drm_dp_aux_disable(struct drm_dp_aux *aux); 274 int drm_dp_aux_prepare(struct drm_dp_aux *aux, u8 encoding); 275 int drm_dp_aux_train(struct drm_dp_aux *aux, struct drm_dp_link *link, 276 u8 pattern); 277 278 /* from fb.c */ 279 struct tegra_bo *tegra_fb_get_plane(struct drm_framebuffer *framebuffer, 280 unsigned int index); 281 bool tegra_fb_is_bottom_up(struct drm_framebuffer *framebuffer); 282 int tegra_fb_get_tiling(struct drm_framebuffer *framebuffer, 283 struct tegra_bo_tiling *tiling); 284 struct drm_framebuffer *tegra_fb_create(struct drm_device *drm, 285 struct drm_file *file, 286 const struct drm_mode_fb_cmd2 *cmd); 287 int tegra_drm_fb_prepare(struct drm_device *drm); 288 void tegra_drm_fb_free(struct drm_device *drm); 289 int tegra_drm_fb_init(struct drm_device *drm); 290 void tegra_drm_fb_exit(struct drm_device *drm); 291 void tegra_drm_fb_suspend(struct drm_device *drm); 292 void tegra_drm_fb_resume(struct drm_device *drm); 293 #ifdef CONFIG_DRM_FBDEV_EMULATION 294 void tegra_fbdev_restore_mode(struct tegra_fbdev *fbdev); 295 void tegra_fb_output_poll_changed(struct drm_device *drm); 296 #endif 297 298 extern struct platform_driver tegra_dc_driver; 299 extern struct platform_driver tegra_hdmi_driver; 300 extern struct platform_driver tegra_dsi_driver; 301 extern struct platform_driver tegra_dpaux_driver; 302 extern struct platform_driver tegra_sor_driver; 303 extern struct platform_driver tegra_gr2d_driver; 304 extern struct platform_driver tegra_gr3d_driver; 305 extern struct platform_driver tegra_vic_driver; 306 307 #endif /* HOST1X_DRM_H */ 308